battery air pump for power outage

[RyanYWG]

Hi SM,

I'm considering to tee with check valve to my current air line, a battery powered air pump (the one that has a plug which is used to detect power failure).

Focusing on the scrubber itself, assuming good growth, and a power outage hits, will the UAS scrubber benefit with only the air pump (no LEDs), aside from aeration/ water movement? Biological filtering?

Thanks.

keywords: blackout, black out, power failure,

[SantaMonica]

Yes it will help keep it alive longer, maybe 3 days.

[RyanYWG]

What would be the difference be between a 3 day blackout that people sometimes do to rid GHA in the tank vs (essentially) a 3 day blackout within the scrubber?

How does the water movement/aeration help, if it does, to keep the GHA alive longer? Nutrient delivery?

[SantaMonica]

Display has nothing to do with scrubber.

If the growth is thick in the scrubber, it will probably start to die in 2 days without flow, and 3 or 4 days with flow. Algae still absorb nutrients in the dark.